大跨度框架梁体外预应力复合加固设计与应用  

COMPOSITE REINFORCEMENT DESIGN AND APPLICATIONS OF EXTERNAL POST-TENSIONING TECHNIQUES FOR BEAM OF LARGE SPAN FRAME

作　　者：廖明进[1] 

机构地区：[1]武汉科技大学,武汉430065

出　　处：《建筑技术》2016年第4期321-323,共3页Architecture Technology

摘　　要：某加固改造工程涉及超大跨度框架梁的加固设计,经方案比选后决定采用型钢加固与体外预应力加固相结合的复合加固办法,充分发挥并较好地结合了两种加固方式的各自优势,完满地解决了空间受限条件下的超大跨度框架梁的加固技术问题,可为类似工程问题提供借鉴。A strengthening and rebuilding project involves strengthening design of super-large wide- span frame beam. After comparison among different schemes, it was determined to adopt the compound strengthening method of profile steel strengthening method plus external prestressing strengthening method, to give full play to and favorably exert the advantages of both methods. Technical problems in strengthening of super-large wide-span frame beam under limited space were successfully solved, providing references for similar projects.

关 键 词：后张预应力 复合加固 大跨度 

分 类 号：TU378[建筑科学—结构工程]